In the guidance of object oriented software engineering idea and UML Unified Modeling Language modeling technology, combing with teaching actual demand, here around the implement of the target of the system analyzes the system's main functional requirements.
There are three kinds of main users in the system. They are students, teachers and administrators. Each kind of users plays a different role in the examination, so their function requirements are different. The main affairs of teachers are questions management, test paper management and test paper review. In test questions management module, teacher can manage the corresponding subjects code, the test questions difficulty levels, questions type, questions score, knowledge code, and the connection of knowledge and test questions etc.
In test paper management module, teacher can manage papers' information, include examination paper analysis, generation, editor, save and the answer extraction; can set various formats print examination paper according to different template.
In test paper review module, mainly review students' online exam results. Students' test can be divided into two forms: One is when do not have online examination conditions, according to template, test papers are generated by teacher in the teachers' platform, after papers are distributed to students, students participate in the closed-book examination; Another case is when have the online test condition, the students can attend online examination, the online exam questions papers are export by administrator, students in the allotted time log in and acquire verification to take an examination, , exam results are save to the database server for teachers to review.
No matter which kinds of form of exam, final result have been submitted to the database server, students can inquire their achievement. Administrators can undertake course management, all kinds of users management, Account and authority distribution, and system maintenance operation. In order to improve the safety of the test. In addition to the above three types of platform function, the system for all users that have access provide personal information maintenance and password modification functions.
Summarize the system's functional requirement, can conclude the system's functions model in UML use case diagram is shown in figure 1. Mixed structure pattern can be safe and effective management systems, and can let all users convenient use system; enhance the flexibility of the system management.
Improve the processing power of system to ensure that the system is stable operation efficiency and security . Following the guiding principles of database design, according to above function analysis, designed the relationship between the correlation database tables which is shown in figure 2. Among them, the key table is the test questions table which stored the test related attributes information.
In SQL server, its physical structure is shown in table 1. In table 1, subject code field and course code field are designed for system function expansion, content field and answer questions field are set to image types, in order to be conveniently stored in the database as binary form, ensured the safety of the test questions, and to prevent the questions from the database leakage.
The test questions associating with knowledge directly, but not associating with teaching books, can break through the limitation of the teaching material, and expand the test data sources. Key techniques by using a computer to realize the test questions database management mainly involved in the system database access, test question editor design and the test paper generation algorithm.
Because system adopts visual studio integrated development environment, so the database access can use ADO. NET access data object technique. It is the solution scheme for Microsoft to data access in. NET; it is also the core service for. NET development system. In order to convenient manage all kinds of courses' test questions, the system should provide an online editor to support text, digital, formula, images and other multimedia data. It is proposed to use OLE Object Linking and Embedding embedded Word document technology in the system, the technical route's obvious advantage is able to make full use of the Word document editor to edit test questions, no need to develop additional questions editor, as long as document can be edited by the Word, it can as a complete test question to store in the database.
The core of the test questions management system is to have a good test paper generation algorithm.
Relational Database Concepts and Applications: Research Paper | Bartleby
At present, there are four ways, including artificial method, random selection method, back in method and genetic algorithm. The former three methods have the defects of slow speed, quality low, and success rate low, but genetic algorithm has the characteristics of parallelism, commonality, global optimization, robustness, operation and simplicity etc .
With genetic algorithm is presented to solve the problem has good effect, so in this system using the genetic algorithm to generate test papers. Using object oriented software engineering idea and UML modeling technology, combing with teaching actual demand, analyzed the main function of the system requirement, designed the system software system structure and database relation model; established system function model that based on UML use case diagram, given UML class diagram to represent database concepts model, and discussed the key technologies involved in the system.
The system combining test questions with knowledge points effectively, broke the limits of the teaching materials, expanded the system's data sources. By using the rich resources, safe test resources management mechanism, scientific test paper generation algorithm, ensured the objectivity of exam.
The system has the actual operational technology solution scheme, which is convenient to extend the scope of application. The research of the general test database management system provided a new idea for the teaching reform exam. The research results contributed to the deepening of the reform of teaching.
This link can be established theoretically, mathematically, or empirically in a systematic and scientific manner. In treating DSS topics, manuscripts may delve into, draw-on, or expand such diverse areas as artificial intelligence, cognitive science, computer supported cooperative work, data base management, decision theory, economics, linguistics, management science, mathematical modeling, operations management psychology, user interface management systems, and others.
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The common thread of articles published in the journal will be their relevance to theoretical, technical DSS issues. The Journal's research papers tend to fall into the following six topic departments:. Founded in , the Journal of Decision Systems publishes original articles in English and French which extend or consolidate scientific knowledge related to Decision Making and Decision systems. Decision systems refer to computer-based applications that can replace partially or totally or help individuals or groups in their Decision-making tasks.
The main purpose of the Journal is to be a forum for researchers and practitioners who design, implement and evaluate computer-based Decision systems. Therefore, papers on Decision Theory, Computer Science, Artificial Intelligence and Operation Research will be considered only if they are directly related to actual Decision situations.
In addition to covering concepts, techniques and tools related to computer-based decision systems, the journal will also publish case studies of human decision making, particularly those involved in the management of organisations. The International Journal of Digital Crime and Forensics IJDCF provides state-of-the-art coverage in the development of legal evidence found in computers and electronic storage mediums. IJDCF addresses the use of electronic devices and software for crime prevention, investigation, and the application of a broad spectrum of sciences to answer questions of interest to the legal system.
This fully refereed journal contains high quality theoretical and empirical research articles, research reviews, case studies, book reviews, tutorials, and editorials in this field. Digital Education Review DER is a magazine designed as a space for dialogue and reflection on the impact of ICT Information and Communication Technologies in education as well as new forms of teaching and learning in digital environments.
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ICT plays an especially important role in education and education systems, presenting arguments and challenges. Analyzing the impact of ICT and new forms of literacy and learning are the main focus of interest in Digital Education Review. The interest of the magazine focuses on topics related to digital literacies and those aspects related to virtual learning, virtual design, development of cognitive tools, materials, hypermedia, Internet, evaluation of ICT for education, etc.
The JDFSL mission is to significantly expand the domain of digital forensics research to a wide and eclectic audience of academics, consultants and executives who are involved in the curriculum, research and use of digital forensics. The JDFSL publishes original research and comments about digital forensics and its relationship to security and law.
Contributions are particularly welcome which analyze the results of interdisciplinary research and relate to the intersection of theory, method and empirical findings.
Of interest will be manuscripts, which present the theoretical concepts of the development, organization, and dissemination of digital forensics concepts. Further, publications will include the results of research and case studies that advance the practice and understanding of digital forensics methods and techniques to support efficient and effective investigations.
JDFSL submissions will be double blind refereed and will provide a forum for high quality research, communication and debate on the subject of digital forensics and directly related fields. The journal brings together the growing global community interested in digital forensics, encompassing law enforcement, research, corporate information security, legal professionals and government.
The International Journal on Digital Libraries is a quarterly journal aimed at advancing the theory and practice of acquisition, definition, organization, management, and dissemination of digital information via global networking. It emphasizes issues in digital information production, management, and use; high-speed networks and connectivity; interoperability and seamless integration of information, people, profiles, tasks, and needs; security and privacy of individuals and business transactions; and effective business processes.
Its scope includes:. Original research papers, survey articles, books reviews, dissertation abstracts etc. The International Journal of Distance Education Technologies JDET is a forum for researchers and practitioners to disseminate practical solutions to the automation of open and distance learning. Targeted to academic researchers and engineers who work with distance learning programs and software systems, as well as general users of distance education technologies and methods, JDET discusses computational methods, algorithms, implemented prototype systems, and applications of open and distance learning.
The maturation of the field of distributed and parallel databases, together with the new issues that are raised by the changes in the underlying technology, require a central focus for work in the area. This journals provides such a focus for the presentation and dissemination of new research results, systems development efforts, and user experiences in distributed and parallel database systems. Distributed and Parallel Databases publishes papers in all the traditional areas of database research, including:.
The International Journal of Distributed Systems and Technologies IJDST focuses on integration techniques, methods, and tools employed in applied distributed computing systems, architectures, and technologies. IJDST pays particular attention to this dimension as a means of diversifying and broadening the applicability and scope of knowledge in the area of distributed systems and technologies.
This journal is dedicated to push developmental boundaries and publish cutting-edge developments related to science-to-science, science-to-business, business-to-business, business-to-customer, and customer-to-customer interactions. Topics covered by IJDST include but are not limited to the heterogeneity and autonomy of Internet, Web, peer-to-peer, service oriented, grid, next generation grid, next generation technologies and other distributed systems paradigms and concepts; algorithms, software, application, services and technologies integration methods; process, resource, service and data virtualization, sharing, and integration; process, resource, service and resource flow management; scheduling; aspects of quality provision, policies; trust, identity management, forensics and security; application developments centered on the integration and management of various e- science-to-science, science-to-business, business-to-business, business-to-customer, and customer-to-customer models.
The mission of the International Journal of Doctoral Studies IJDS is to provide readers worldwide with high quality peer-reviewed scholarly articles spanning the wide variety of issues in doctoral studies. The editorial objective of IJDS is to inform all those involved with doctoral education regardless of specific discipline.
Joint publications between faculty members and their doctoral students are also encouraged. While IJDS is principally an interdisciplinary forum that publishes high quality articles on theory, practice, innovation, and research covering any aspect of doctoral studies, book reviews are also welcome.
Authors may use bodies of knowledge from diverse fields of research. However, IJDS is not a general outlet for doctoral students who wish to publish their doctoral research, unless their doctoral research is related to investigation of the issues indicated above. IJDS provides those who submit manuscripts for publication with useful, timely feedback by making the review process constructive. IJDS is the most authoritative interdisciplinary journal on doctoral studies. Sponsored by the International Association for Pattern Recognition, this journal is focused on publishing articles that cover all areas related to document analysis and recognition.
This includes contributions dealing with computer recognition of characters, symbols, text, lines, graphics, images, handwriting, signatures, as well as automatic analyses of the overall physical and logical structures of documents, with the ultimate objective of a high-level understanding of their semantic content. The International Journal on Document Analysis and Recognition IJDAR publishes articles of four primary types: original research papers, correspondence, overviews and summaries, and system descriptions.
It also features special issues on active areas of research. This publication is edited by John Lamp who can be reached at John. Lamp deakin. This page was last updated on 9 August Individual entries were updated on the date shown against the entry. Although I will attempt to keep this information accurate, I can not guarantee the accuracy of the information provided. Copyright and Privacy information. Knowledge representation techniques. Applications, case studies, and management issues: Data administration issues, knowledge engineering practice, office and engineering applications.
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